EasyManuals Logo

BRUEL & KJAER 2221 User Manual

BRUEL & KJAER 2221
32 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #22 background imageLoading...
Page #22 background image
16
Determination
of
the
elapsed
time
(max.
Leq
period
not
exceeded):
1. Read
Leq
and SEL
displayed
values
2.
Work
out
SEL -
Leq
3.
Locate
this
last
result on
the
top
part
of
the
scale, and read
the
measurement
duration
indicated
directly
below
it
on
the
bottom
part
of
the scale.
Example
(See Fig.3. 7):
Fig.
3.
7.
Determination
of
elapsed
time
With
a
displayed
Leq
and SEL
of
60 dB(A) and 94 dB(A)
respectively,
the
difference
SEL -
Leq
= 34 dB. This
corresponds
to
an
elapsed
time
of
approximately
42 min.
Determination
of
the
correct
Leq
for
measurement
period
longer
than
2,77 hours:
1.
Locate
time
duration
of
the
measurement
on the
bottom
part
of
the
scale, and
read
the
SEL -
Leq
difference
directly
above.
2.
Substract
this
value
from
the
displayed
SEL value (no
time
limit)
to
obtain
the
Leq·
Example
(See Fig.3.8):
Fig. 3.8.
Determination
of
Leq
of
a
period
greater
>
2,
77
hours

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the BRUEL & KJAER 2221 and is the answer not in the manual?

BRUEL & KJAER 2221 Specifications

General IconGeneral
BrandBRUEL & KJAER
Model2221
CategoryMeasuring Instruments
LanguageEnglish

Related product manuals